# Approval and Promulgation of Air Quality Implementation Plans; Maryland; Preconstruction Requirements-Prevention of Significant Deterioration and Nonattainment New Source Review; Correction
> **Rule** · Final rule; correction. · Published 2012-08-30 · Effective 2012-09-04 · 77 FR 52605
## Document
- **Document number:** 2012-21345
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 52605
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-08-30
- **Effective date:** 2012-09-04
- **State:** MD
- **EPA docket:** EPA-R03-OAR-2011-0866
## Abstract

This document corrects errors in the final rule document published on August 2, 2012 announcing EPA's final approval of several revisions to the Maryland State Implementation Plan (SIP) pertaining to preconstruction requirements under the Prevention of Significant Deterioration (PSD) and nonattainment New Source Review (NSR) programs. The correction of these errors neither changes EPA's final action to approve these regulations nor the September 4, 2012 effective date of that final approval.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/30/2012-21345/approval-and-promulgation-of-air-quality-implementation-plans-maryland-preconstruction)
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